Adhoc School - A community-based marketplace for K12 after school activities & activities.
Readwise - Effortlessly rediscover and organize your Kindle highlights
Gooroo - Tutoring subscription featuring personalized matching
Knotes - An efficient, beautiful Kindle highlights & notes manager
Programming Hero - Personalized, fun, and interactive way to learn programming
Clippings.io - Organize the notes you make on your Kindle